Construction of fireproof brick floors.



No. 803,559. PATENTED NGV. 7, 1905. 0. GRACOANU. CONSTRUCTION 0F FIREPROOF BRICK FLOORS.

APPLIOLTIGI FILED DSO. 11. 1901.

UNITED STATES PATENT OFFICE.

OVIDIUS CRACOANU, OF HALLE-ON-THE-SAALE, GERMANY, ASSIGNOR TO RICHARD FABER, OF FERMERSLEBEN, NEAR MAGDEBURG, GERMANY.

CONSTRUCTION OF FIREPROOF BRICK FLOORS.

Specification of Letters Patent.

Patente-d Nov. '7, 1905.

Application filed December 1l, 1901. Serial No. 85.507.

To'ct w'lwm it may concerti/0 Be it known that I, OvIDIUs CRACOANU, graduated civil engineer', a subject of the King of Roumania, residing at 23 Meckelstrasse, in the city of Halle-on-the-Saale, in the German Empire, have invented a certain new and useful Improvement in the Construction of Fireprooil Brick Floors, of which the following is a specification.

The subject of this invention is a method of constructing ireproof ceilings from hollow bricks and provided with an embedded iron structure and from any kind of hollow bricks by pouring a binding material into the joints, so that all the parts of the structure combine to form one uniform whole,these ceilings being capable 4of supporting considerably greater loads than beam floors or ceilings, combined with a comparatively diminished height of the structure and a great reduction in the quantity of iron used.

As will be seen from the drawings, in which Figure l represents a longitudinal section; Fig. 2, a transverse section, and Fig. 3 a plan view, the. method consists in shutting off the cavities of the bricks from the cross-joints of the iloor or ceiling by small pipes a or plugs of suitable shape and of any kind of material in such a manner that the binding agent, which is to be poured last of all into the broad joints of the floor or ceiling, will lill up the same completely without entering the cavities. In order to completel y envelop the iron structure Z and qalso with the binding agent, the said iron structure is separated from the temporary pattern timber linino by inserted pieces u and insulating-pieces u in forni of small blocks or rings, these blocks or rings being also used to separate the iron structure from the adjoining bricks, so as to give ample space to the binding agent Which is to be poured in to allow it-to flow under the iron also and to envelop the same completely.

I claim- Ceilings or oors composed of hollow bricks connected longitudinally by sleeves fitted into the hollows of the bricks and having wires stretched longitudinally and transversely across the ceilings or floors, said wires being embedded in the binding-mortar at or near the lower edges of the bricks, substantially as described.

In witness whereof I have hereunto set ,my hand in presence of two witnesses.

OVIDIUS CRACOANU.

Witnesses:

JULIUS HoRnM, RUDOLPH Fnrcltn. 

